Ehong Command Interface User Guide ________________________________________________________________________________________________

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EH-MC-10

Command Interface User Guide

Ver 1.3

2014. 4. 9

Ehong Command Interface User Guide ________________________________________________________________________________________________

ShangHai Ehong Technology Inc

Version Date Comments V1.0 2012-12-09 Release

V1.1 2013-03-02 Add ibeacon AT command V1.2 2013-04-02 Add Soc air command V1.3 2014-04-09 Solve the document error

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1.Introduction ......................................................................................................... 1

1.1. Default UART Configuration ...................................................................... 1 2. Command and Indicator Syntax .......................................................................... 1

2.1. General Syntax .......................................................................................... 1 2.2 Description of each field: .......................................................................... 2 2.3. Examples ................................................................................................. 2

3. Command List ................................................................................................... 3 4. Indicator List...................................................................................................... 4 5. Description of ASCII Commands ....................................................................... 5

5.1. General Information Commands .............................................................. 5 5.1.1. BD—Module UART BaudRate .............................................................. 5

5.1.1.1 Description: .................................................................................. 5 5.1.1.2 Syntax: ....................................................................................... 5 5.1.1.3. Parameter Description: ................................................................ 5 5.1.1.4. Examples: .................................................................................... 6

5.1.2. AD—Start or Stop Adverting (Discoverble) ............................................ 6 5.1.2.1 Description: .................................................................................. 6 5.1.2.2. Syntax: ........................................................................................ 6 5.1.2.3. Parameter Description: ................................................................ 7 5.1.2.4. Examples: .................................................................................... 7

5.1.3. NM—Start or Stop Adverting ................................................................. 7 5.1.3.1 Description: .................................................................................. 7 5.1.3.2. Syntax: ........................................................................................ 7 5.1.3.3. Parameter Description: ................................................................ 8 5.1.3.4. Examples: .................................................................................... 8

5.1.4. AT — Query or Config Advertise Type .................................................. 8 5.1.4.1 Description: .................................................................................. 8 5.1.4.2. Syntax: ........................................................................................ 8 5.1.4.3. Parameter Description: ................................................................ 8 5.1.4.4. Examples: .................................................................................... 9

5.1.5. RT— Reset the Module ........................................................................ 9 5.1.5.1 Description: .................................................................................. 9 5.1.5.2. Syntax: ........................................................................................ 9 5.1.5.3. Parameter Description: .............................................................. 10 5.1.5.4. Examples: .................................................................................. 10

5.1.6. DC— Disconnect from Module ........................................................... 10 5.1.6.1 Description: ................................................................................ 10 5.1.6.2. Syntax: ...................................................................................... 10 5.1.6.3. Parameter Description: .............................................................. 10 5.1.6.4. Examples: .................................................................................. 11

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5.1.7. UD— Query or Config Module’s Service UUID ................................... 11 5.1.7.1 Description: ................................................................................ 11 5.1.7.2. Syntax: ...................................................................................... 11 5.1.7.3. Parameter Description: .............................................................. 11 5.1.7.4. Examples: .................................................................................. 12

5.1.8. RI— Query Module’s rssi value .......................................................... 12 5.1.8.1 Description: ................................................................................ 12 5.1.8.2. Syntax: ...................................................................................... 12 5.1.8.3. Parameter Description: .............................................................. 12 5.1.8.4. Examples: .................................................................................. 13

5.1.9. DF— Reset Module’s nvram ............................................................... 13 5.1.9.1 Description: ................................................................................ 13 5.1.9.2. Syntax: ...................................................................................... 13 5.1.9.3. Parameter Description: .............................................................. 13 5.1.9.4. Examples: .................................................................................. 13

5.1.10. AR— Query Module’s address .......................................................... 14 5.1.10.1 Description: .............................................................................. 14 5.1.10.2. Syntax: .................................................................................... 14 5.1.10.3. Parameter Description: ............................................................ 14 5.1.10.4. Examples: ................................................................................ 14

5.1.11. ST— Query Module’s state ............................................................... 14 5.1.11.1 Description: ............................................................................... 14 5.1.11.2. Syntax: ..................................................................................... 15 5.1.11.3. Parameter Description: ............................................................ 15 5.1.11.4. Examples: ................................................................................ 15

5.1.12. CB— Clear Module’s bond information ............................................. 15 5.1.12.1 Description: .............................................................................. 15 5.1.12.2. Syntax: .................................................................................... 15 5.1.12.3. Parameter Description: ............................................................ 16 5.1.12.4. Examples: ................................................................................ 16

5.1.13. CN — Query or Config the repect connect parameter ...................... 16 5.1.13.1 Description: .............................................................................. 16 5.1.13.2. Syntax: .................................................................................... 16 5.1.13.3. Parameter Description: ............................................................ 16 5.1.13.4. Examples: ................................................................................ 17

5.1.14. CC— Query the current connect parameter ..................................... 17 5.1.14.1 Description: .............................................................................. 17 5.1.14.2. Syntax: .................................................................................... 18 5.1.14.3. Parameter Description: ............................................................ 18 5.1.14.4. Examples: ................................................................................ 18

5.1.15. DA— Send the data to BLE Central .................................................. 18

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5.1.15.1 Description: .............................................................................. 18 5.1.15.2. Syntax: .................................................................................... 19 5.1.15.3. Parameter Description: ............................................................ 19 5.1.15.4. Examples: ................................................................................ 19

5.1.16. BM— Query or Config the ibeacon Major UID .................................. 19 5.1.16.1 Description: .............................................................................. 19 5.1.16.2. Syntax: .................................................................................... 19 5.1.16.3. Parameter Description: ............................................................ 20 5.1.16.4. Examples: ................................................................................ 20

5.1.17. BS— Query or Config the ibeacon Minor UID .................................. 20 5.1.17.1 Description: .............................................................................. 20 5.1.17.2. Syntax: .................................................................................... 20 5.1.17.3. Parameter Description: ............................................................ 21 5.1.17.4. Examples: ................................................................................ 21

5.1.18. BP— Query or Config the ibeacon Power Value ............................... 21 5.1.18.1 Description: .............................................................................. 21 5.1.18.2. Syntax: .................................................................................... 21 5.1.18.3. Parameter Description: ............................................................ 21 5.1.18.4. Examples: ................................................................................ 22

6. Description of ASCII Indicators ....................................................................... 22 6.1. General Indicators ................................................................................. 22

6.1.1. OK—Command is Adopted by the Bluetooth Module ................... 22 6.1.1.1. Description: ............................................................................... 22 6.1.1.2. Syntax: ...................................................................................... 22 6.1.1.3. Parameter Description: .............................................................. 23 6.1.1.4. Examples: .................................................................................. 23

6.1.2. ER—Error ........................................................................................... 23 6.1.2.1. Description: ............................................................................... 23 6.1.2.2. Syntax: ...................................................................................... 23 6.1.2.3. Parameter Description: .............................................................. 23 6.1.2.4. Examples: .................................................................................. 24

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1.Introduction

The Command Interface is a set of ASCII commands and indicators with which the user can Command the ’s Bluetooth module (BLE) via UART interface by a host (PC, MCU, etc.).

The commands are used to Command the Bluetooth module sent by host. The indicators

are output from the Bluetooth module to the host to indicate the status of the module. In addition, there are some IO indicators available when the UART is used to transfer raw

data . As a complement of ASCII commands and indicators, the IO indicators are also a part of AT COMMAND Spec.

1.1. Default UART Configuration

The default configuration of UART is given below: Baud rate: 2400 Data bits: 8 Stop bits: 1 Parity: None Flow Command: None

2. Command and Indicator Syntax

2.1. General Syntax

The general syntax of AT command is shown as below: →AT+CMD[=Para1][,Para2][, RawData]

The general syntax of AT indicator is shown as below:

←IDC[=Para1] Note: 1. For the examples in this document, the command sent to the Bluetooth Module will be shown with

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“→” at the beginning of the line, while the indicator output by Bluetooth Module will be shown with “←” at the

beginning of the line.

2.2 Description of each field:

“AT+” is the command line prefix. “CMD” is the command. All of the commands are listed in section 5. “IDC” is the basic indicator. All of the indicators are listed in section 4. “=” is the separator between command/indicator and parameter. It’s only needed if a parameter is presented. Para1 is the first parameter. Not all of the commands have a parameter. , is the separator between parameters. It’s only needed if subsequent parameter is presented. Para2 is the second parameter if available. RawData is the raw data which will be sent by the command. Only parts of the commands have this field. is the terminator of the command line. Notes: 1. All of the parameters are composed of ASCII characters while the RawData field can composed of any data contents. 2. In indicators, the module prints hex values in low case. For other places in the document we always use upper case characters for hex values.

2.3. Examples

Here is some examples show how to use the AT commands and indicators. →AT+NM=EH-LINK configure the GAP device name characteristic. The new name is “EH-LINK”. ←OK response from the module to indicate the command is adopted. Notes:

For the examples in this document, the command sent to the Bluetooth Module will be shown with “→” at the beginning of the line, while the indicator output by Bluetooth Module will be shown with “←” at the beginning of the line. “→”and“←” not send with the ascii data.

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3. Command List

All the available AT commands are listed and briefly described in the tables below. The detailed description of each command is given in chapter 5 . Command Short Description AD Make the Bluetooth Module discoverable/connectable,

in BLE the peripheral start/stop the advertising after got this command.

BD Query or configure the UART baud rate. NM Query or configure the GAP device name

characteristic. AT Query or configure the Advertise Type of the Bluetooth

Module. DA Send data packet to the connected BLE central. DC Disconnect with remote BLE central ST Query the current radio status. UD Query or configure the GATT service UUID128 the

module RT Reset module CB Clear the paired Bluetooth device list. RI Query the RSSI for the current connection. AR Query the Bluetooth address of the module DF Configure all setting to factory default values CN Query or configure the peripheral preferred connection

parameter characteristic CC Query current connection parameter characteristic BM Query or configure the Major ID of ibeacon Module. BS Query or configure the MinorID of ibeacon Module. BP Query or configure the Power of ibeacon Module.

Table 1. AT Command List for BLE

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4. Indicator List

All the available AT Command indicators are listed and briefly described in the tables below. The detailed description of each indicator is given in chapter 5 and chapter 6.

Indicator Short Description OK Indicates a command was adopted by

the Bluetooth Module. ER Indicates there is an error detected in

the command sent by the host. BD Reports the UART baud rate.

UD Report the GATT service UUID128 the module

AR Report the Bluetooth address of the Module

CC Report the Current connection parameter

RI Report the RSSI for the current connection.

ST Report the radio state.

NM Reports the device name of the Bluetooth Module.

AT Reports the device Advertisement Config

CN Report the peripheral preferred connection parameter

BM Report the ibeacon major id of the ibeacon Module

BS Report the ibeacon minor id of the ibeacon Module

BP Report the Power of the ibeacon Module

Table 2. AT Indicator List for BLE

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5. Description of ASCII Commands

5.1. General Information Commands

5.1.1. BD—Module UART BaudRate

5.1.1.1 Description:

This command can query or change the UART baud rate of Bluetooth Module. Once changed, the new baud rate will take effect next power on. The Bluetooth module stores the value in its non-volatile memory so the value won’t change until be set again. If the parameter is not presented, the Bluetooth Module will report current baud rate by the Indicator BD.

5.1.1.2 Syntax:

→AT+BD[= BaudRate] ←BD=BuadRate

5.1.1.3. Parameter Description:

Parameter Description Nvram Comments BaudRate Value: 00 - 09 Default: 00

The new BaudRate of the Module. 00: 2400 bps 01: 9600 bps 02: 19200 bps 03: 38400 bps 04: 57600 bps 05: 115200 bps 06: 230400 bps

YES The default baud rate may not be 2400 per software version. Using default 2400 baud rate – no need to assert (pull up to high logic level) the WAKE pin to wake up the module from deep sleep before transmitting to it.

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07: 460800 bps 08: 921600 bps 09: 1382400 bps

Note:

1. Please do NOT try to change to a new baud rate if you don't have a host which can work in that baud rate, for there is no other way to reset it except for UART port. 2. If baud rate other than 2400 is used, please keep pulling up the WAKE pin during sending data to the module.

5.1.1.4. Examples:

Ex. 5.1. To query the baud rate of Bluetooth Module: →AT+BD query the baud rate. ←BD=00 report the baud rate, it’s 2400. Ex. 5.2. To change the baud rate of Bluetooth Module: →AT+BD=01 change the baud rate to 9600. ←OK response from the module to indicate the command is adopted.

5.1.2. AD—Start or Stop Adverting (Discoverble)

5.1.2.1 Description:

This command can start or stop the BLE Module advertising. The module is discoverable/connectable only when the module is advertising.

5.1.2.2. Syntax:

→AT+AD[=Flag] ←AD=Flag

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5.1.2.3. Parameter Description:

Parameter Description Nvram Comments Flag

Start or Stop BLE Module advertising 00: stop 01: start

NC

5.1.2.4. Examples:

Ex. 5.3. To make Bluetooth Module discoverable: →AT+AD=01 　 make Bluetooth Module discoverable. ←OK 　 response from the module to indicate the command is adopted. Ex. 5.4. To make Bluetooth Module no discoverable: →AT+AD=00 　 make Bluetooth Module don’t discoverable. ←OK 　 response from the module to indicate the command is adopted.

5.1.3. NM—query or configure module’s name

5.1.3.1 Description:

This command can query or configure the BLE Module’s name.

5.1.3.2. Syntax:

→AT+NM[=Name] ←NM=Name

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5.1.3.3. Parameter Description:

Parameter Description Nvram Comments Name query or configure the

BLE Module’s name. YES The lenth of the name

can’t over 20 bytes.

5.1.3.4. Examples:

Ex. 5.5 To query the name of module: →AT+NM 　 Query the name of module ←NM=EH-Link-MC-10 　 response the name of the module . Ex. 5.6 configure the name of the module: →AT+NM=EH-LINK 　 Configure the name of module as EH-LINK ←OK 　 response from the module to indicate the command is adopted.

5.1.4. AT — Query or Config Advertise Type

5.1.4.1 Description:

This command can query or configure the advertise type

5.1.4.2. Syntax:

→AT+AT[=Type] ←AT=Type

5.1.4.3. Parameter Description:

Parameter Description Nvram Comments Type query or configure the YES when the module

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Lenth: 2 Default: 0001

advertise type Bit15: ibeacon mode config Bit14-4: reserved Bit3: Bonded Flag, 1: need pair and bond. 0: needn’t pair and bond. Bit2: always slow advertising Bit1: always fast advertising Bit0:auto advertising when power on or disconnect

advertising,30s fast advertising, and 60s slow advertising, then goto idle state

5.1.4.4. Examples:

Ex. 5.7 To query the advertise type of the module: →AT+AT 　 query the module advertising type. ←AT=0001 　 response the advertising type.of the module . Ex. 5.8 To configure the advertise type of the module: →AT+AT=0009 　 make Bluetooth Module need bonded ←OK 　 response from the module to indicate the command is adopted. Ex. 5.9 To configure the advertise type of the module: →AT+AT=0000 　 make Bluetooth Module no auto advertising when power on or disconnect action. ←OK 　 response from the module to indicate the command is adopted.

5.1.5. RT— Reset the Module

5.1.5.1 Description:

This command can reset the Module by UART.

5.1.5.2. Syntax:

→AT+RT ←OK

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5.1.5.3. Parameter Description:

None Note:

When at command send ,indicate OK, and after 1s, the module reset

5.1.5.4. Examples:

Ex. 5.10. To reset the module. →AT+RT 　 reset the module. ←OK 　 response from the module to indicate the command is adopted.

5.1.6. DC— Disconnect from Module

5.1.6.1 Description:

This command can disconnect the module

5.1.6.2. Syntax:

→AT+DC ←OK

5.1.6.3. Parameter Description:

None

Note: This command only valid when the module in connected state.

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5.1.6.4. Examples:

Ex. 5.11. To disconnect the module. →AT+DC 　 disconnect the module. ←OK 　 response from the module to indicate the command is adopted.

5.1.7. UD— Query or Config Module’s Service UUID

5.1.7.1 Description:

This command can query or configure the module’s Service UUID.Every command can’t config the 2 bytes UUID.

5.1.7.2. Syntax:

→AT+UD[=inx, uuid] ←UD=UUID0,UUID1,UUID2,UUID3,UUID4,UUID5,UUID6,UUID7

5.1.7.3. Parameter Description:

Parameter Description Nvram Comments

inx

Value: 00-07

The index of the

uuid

YES

uuid

Value:

0000-FFFF

The value of the

UUID, 2 hex byte.

YES

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UUID0-UUID

7

The 128bits UUID,

every uuid 2 Hex

bytes

5.1.7.4. Examples:

Ex. 5.12. To query the module’ service UUID. →AT+UD 　 query the module’s service UUID. ←UD=1111,2222,3333,4444,5555,6666,7777,8888 　 response from the

module’s service UUID Ex. 5.13. To configure the module’ service UUID, 2 Hex Byte. →AT+UD=00,1234 　 configure the module’s fisrt UUID ←OK 　 response from the module to indicate the command is adopted.

5.1.8. RI— Query Module’s rssi value

5.1.8.1 Description:

This command can query the connected module’s rssi.

5.1.8.2. Syntax:

→AT+RI ←RI=rssi

5.1.8.3. Parameter Description:

Parameter Description Nvram Comments Rssi The rssi value, 1 Hex NC This command valid

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Value:-128 to 127

byte.

only the module in connected state.

5.1.8.4. Examples:

Ex. 5.14. To query the module’s rssi →AT+RI 　 query the module’s rssi ←RI=e2 　 response from the module’s rssi, e2=-30

5.1.9. DF— Reset Module’s nvram

5.1.9.1 Description:

This command can configure the setting of the module to default.

5.1.9.2. Syntax:

→AT+DF ←OK

5.1.9.3. Parameter Description:

None Note:

This command send, all of the configure data is clear, and set the default.

5.1.9.4. Examples:

Ex. 5.15.To reset the module’s configure data →AT+DF 　 reset the all configure data of the module ←OK 　 response from the module to indicate the command is adopted.

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5.1.10. AR— Query Module’s address

5.1.10.1 Description:

This command can query the module’s address.

5.1.10.2. Syntax:

→AT+AR ←AR=address

5.1.10.3. Parameter Description:

Parameter Description Nvram Comments address The module’s local

address 6 Hex byte

NC

5.1.10.4. Examples:

Ex. 5.16. To query the module’s address. →AT+AR 　 query the module’s address ←AR=000196F00018 　 response the module’s address

5.1.11. ST— Query Module’s state

5.1.11.1 Description:

This command can query the module’s state

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5.1.11.2. Syntax:

→AT+ST ←ST=State

5.1.11.3. Parameter Description:

Parameter Description Nvram Comments State Value: 00-04

The Module state 00: idle 01: fast advertising 02: slow advertising 03: connected 04: connected and bonded

NC

5.1.11.4. Examples:

Ex. 5.17. To query the module’ state. →AT+ST 　 query the module’s state ←ST=01 　 response the module’s state is fast advertising.

5.1.12. CB— Clear Module’s bond information

5.1.12.1 Description:

This command can clear the module’s bond information

5.1.12.2. Syntax:

→AT+CB ←OK

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5.1.12.3. Parameter Description:

None

5.1.12.4. Examples:

Ex. 5.18. To reset the module’s bond information. →AT+CB 　 clear the module’s bond information ←OK 　 response from the module to indicate the command is adopted.

5.1.13. CN — Query or Config the repect connect

parameter

5.1.13.1 Description:

This command can query or configure the respect connect parameter of the module

5.1.13.2. Syntax:

→AT+CN[=MinInterval, MaxInterval, Latency, Timeout] ←CN=MinInterval,MaxInterval,Latency,Timeout

5.1.13.3. Parameter Description:

Parameter Description Nvram Comments MinInterval Value: 0006- 0C80 Default:0190

The minimum value for the connection interval. 2 Hex Byte

YES Uinit: 1.25 ms

The Maximum value for YES Uinit: 1.25 ms

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MaxInterval Value: 0006- 0C80 Default:0190

the connection interval. 2 Hex Byte

Latency Value: 0000-03E8 Default:0004

The slave latency for the connection in number of connectionevents. 2 Hex Byte

YES

Timeout Value: 0006- 0C80 Default:03E8

The connection supervisor timeout multiplier as a multiple of10ms. 2 Hex Byte

YES Uinit: 10 ms

Note:

The Mininteral and MaxInterval just a range for connect parameter. The real interval need query after the comminicate successful between the slave and central.

5.1.13.4. Examples:

Ex. 5.19. query the module’s connection parameter →AT+CN query the module’s connection parameter ←CN=0190,0190,0004,03e8 　 response the module’s connection parameter Ex. 5.20. configure the module’s connection parameter →AT+CN=0010,0050,0004,0256 　 configure the module’s connection parameter ←OK 　 response from the module to indicate the command is adopted.

5.1.14. CC— Query the current connect parameter

5.1.14.1 Description:

This command can query the current connect parameter of the module

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5.1.14.2. Syntax:

→AT+CC ←CC=Interval,Latency,Timeout

5.1.14.3. Parameter Description:

Parameter Description Nvram Comments Interval Value: 0006- 0C80

Current connect Interval 2 Hex Byte

NC Uinit: 1.25 ms

Latency Value: 0000-03E8

Current connect Latency2 Hex Byte

NC

Timeout Value: 0006- 0C80

Current connect Timeout2 Hex Byte

NC Uinit: 10 ms

5.1.14.4. Examples:

Ex. 5.21. To reset the module. →AT+CC 　 query the module’s current connection parameter ←CC=0020,0008,0048 　 response the module’s current connection parameter

5.1.15. DA— Send the data to BLE Central

5.1.15.1 Description:

This command can send a pakage data to BLE Central

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5.1.15.2. Syntax:

→AT+DA=string ←OK

5.1.15.3. Parameter Description:

Parameter Description Nvram Comments String Format:ASCII

Custom need send data, ascii format The max lenth of the data is 20

NC

Note:

This command valid only the module in connected state.

5.1.15.4. Examples:

Ex. 5.22. To send the data bypass to central →AT+DA=0123456789 send “0123456789” bypass to central (ex. iphone) ←OK 　 response from the module to indicate the command is adopted.

5.1.16. BM— Query or Config the ibeacon Major UID

5.1.16.1 Description:

This command can query or Config the ibeacon Major UID

5.1.16.2. Syntax:

→AT+BM[=Major]

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←BM=Major

5.1.16.3. Parameter Description:

Parameter Description Nvram Comments Major Value: 0000-FFFF Default: 0000

Ibeacon’s Major UID 2 Hex Byte

YES This command valid only in ibeacon mode

5.1.16.4. Examples:

Ex. 5.23. To query the ibeacon module’s Major UID. →AT+BM 　 query the ibeacon module’s Major UID. ←BM=0000 　 response the ibeacon module’s Major UID Ex. 5.24. To configure the ibeacon module’s Major UID. →AT+BM=0001 　 configure the ibeacon module’s Major UID. ←OK 　 response from the module to indicate the command is adopted.

5.1.17. BS— Query or Config the ibeacon Minor UID

5.1.17.1 Description:

This command can query or Configure the ibeacon Minor UID

5.1.17.2. Syntax:

→AT+BS[=Minor] ←BS=Minor

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5.1.17.3. Parameter Description:

Parameter Description Nvram Comments Minor Value: 0000-FFFF Default: 0000

Ibeacon’s MinorUID 2 Hex Byte

YES This command valid only in ibeacon mode

5.1.17.4. Examples:

Ex. 5.25. To query the ibeacon module’s MinorUID. AT+BS 　 query the ibeacon module’s MinorUID. BS=0000 　 response the ibeacon module’s Minor UID Ex. 5.26. To configure the ibeacon module’s MinorUID. AT+BS=0001 　 configure the ibeacon module’s Minor UID. OK 　 response from the module to indicate the command is adopted.

5.1.18. BP— Query or Config the ibeacon Power Value

5.1.18.1 Description:

This command can query or Configure the ibeacon Power value

5.1.18.2. Syntax:

→AT+BP[=Power] ←BP=Power

5.1.18.3. Parameter Description:

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Parameter Description Nvram Comments Power Value: 00-FF Default: 00

Ibeacon’s Power value 1Hex Byte, -128 - 127

YES This command valid only in ibeacon mode

5.1.18.4. Examples:

Ex. 5.27. To query the ibeacon module’s Power value AT+BP 　 query the ibeacon module’s Power value BP=00 　 response the ibeacon module’s Power value Ex. 5.28. To configure the ibeacon module’s Power value AT+BP=01 　 configure the ibeacon module’s Power value. OK 　 response from the module to indicate the command is adopted.

6. Description of ASCII Indicators

6.1. General Indicators

6.1.1. OK—Command is Adopted by the Bluetooth

Module

6.1.1.1. Description:

This indicator indicates a command was adopted by the Bluetooth Module successfully.

6.1.1.2. Syntax:

←OK

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6.1.1.3. Parameter Description:

None

6.1.1.4. Examples:

Ex. 6.1. To make Bluetooth Module discoverable: →AT+AD=01 　 make Bluetooth Module discoverable. ←OK 　 response from the module to indicate the command is adopted.

6.1.2. ER—Error

6.1.2.1. Description: This indicator indicates there is an error detected in the command sent by the host.

6.1.2.2. Syntax:

←ER=Code

6.1.2.3. Parameter Description:

Parameter Description Comments Code The error code to give

the reason 01: The command is not support 02: The command Parameter is not right 03: The command is not allowed in current state.

Ehong Command Interface User Guide _______________________________________________________________________________________________

ShangHai Ehong Technology Inc 24

6.1.2.4. Examples:

Ex. 6.1. To make Bluetooth Module discoverable: →AT+AD=06 06 is not a allowed parameter. ←ER=03 　 response from the module to indicate the command is not allowed.